Light can make a big difference in someone's life. But in corners of the world where electricity is still unreliable, if it exists at all, light from a light bulb can be impossible. But there's another solution: and it's as simple as some water and a plastic soda bottle.

The cheapest of new technologies is bringing light into hundreds of thousands of homes in the developing world, with virtually zero environmental impact. Host Marco Werman reports on the "Moser lamp,".

Light can make a big difference in someone's life. But in corners of the world where electricity is still unreliable, if it exists at all, light from a light bulb can be impossible. But there's another solution: and it's as simple as some water and a plastic soda bottle.

The cheapest of new technologies is bringing light into hundreds of thousands of homes in the developing world, with virtually zero environmental impact. Host Marco Werman reports on the "Moser lamp,".

Light can make a big difference in someone's life. But in corners of the world where electricity is still unreliable, if it exists at all, light from a light bulb can be impossible. But there's another solution: and it's as simple as some water and a plastic soda bottle.

The cheapest of new technologies is bringing light into hundreds of thousands of homes in the developing world, with virtually zero environmental impact. Host Marco Werman reports on the "Moser lamp,".